Dispatches From The Geeks

News and Announcements from the MCS Systems Group

Reminder: Linux Workstation / NFS fileserver maintenance

From: Dan Olson <dolson@mcs.anl.gov>
Date: December 22, 2011 11:10:07 AM CST
To: systems-announce@mcs.anl.gov
Subject: Linux Workstation / NFS fileserver maintenance
Reply-To: systems@mcs.anl.gov


The MCS NFS fileservers will be undergoing maintenance from 6AM CST December 27 to 6PM CST December 28.  

We are moving home directories and our softenv environment to a new server during this window.  This work
is being performed to provide performance improvements and more available space.  

During this period you may not be able to logon to linux workstations, and many of our filesystems will
be marked readonly.  The linux workstations, login and compute servers will be restarted at the completion
of this maintenance.  

—-
Daniel Murphy-Olson       
Systems Administrator
Mathematics & Computer Science Division
Argonne National Laboratory
630-252-0055

Written by Craig Stacey

December 27, 2011 at 9:13 pm

Posted in Uncategorized

New Copiers/Printers

The new copier/printers are being installed today. We’re in the process of getting them set up. We’ll send an announcement with a link to instructions when everything’s all set and ready to go. You should be able to use the copy function now, but the rest will require a little time before it’s all online.

Thanks!

Written by Craig Stacey

December 5, 2011 at 5:32 pm

Posted in Uncategorized

Zimbra outage on Saturday, November 26, noon to 5PM.

This outage and upgrade is going ahead. The time frame is from noon until 5PM. Happy Thanksgiving!

Written by Craig Stacey

November 23, 2011 at 8:56 pm

Posted in Uncategorized

Possible Zimbra outage on Saturday, November 26.

The latest Zimbra release addresses a bug we’ve hit recently, and we’d like to roll it out quickly. As Thanksgiving weekend tends to be slow, this coming Saturday is the first choice. The outage would last around 5 hours (9AM to 1PM), and during the outage you couldn’t check or send mail, nor get to your calendar. No mail would be lost, it would simply queue up during the outage and be delivered after the upgrade is complete. These things tend to go smoothly.

If this poses a problem for anyone, please let me know. Otherwise, we’ll send another announcement later this week making it official.

Thanks!

Written by Craig Stacey

November 21, 2011 at 10:34 pm

Posted in Uncategorized

MCS Account Pages

All,

The MCS account pages recently received an update. The next time you
login, you will notice a new look and some differences in the
organization of data. Some of our documentation may be out-of-date
regarding the new pages, but we are working to update all the relevant
info ASAP. Please send any questions/comments/suggestions to
systems@mcs.anl.gov.

Thanks,

Written by Craig Stacey

November 10, 2011 at 10:32 pm

Posted in Uncategorized

Power work complete

The power work was completed ahead of schedule. Power is back to the building, but due to the coordination problems of shifting the schedule, we’re not changing it. (For instance, can’t turn on cooling to the datacenter until there’s sufficient load to cool.) Will be there around four. Building network is scheduled to come back at 7, I believe.

Written by Craig Stacey

November 6, 2011 at 3:46 pm

Posted in Uncategorized

Power Outage this weekend (11/4-11/6)

Please note this will affect all machines in the datacenter.  Primary websites will stay up, as will cryptocard, database servers, mailing lists, and RT, as we have hosted those servers in another building.  Compute servers, file servers, and clusters hosted in 240 will be down.  The power will not return until 5PM on Sunday, at which point we can start turning things back on.

Also, the Zimbra mail/calendar service will be getting a maintenance upgrade this Saturday from 9 AM until 1 PM.  Except for that window, your mail will stay up.  During that window, mail will be queued up and will be delivered after service returns.  A more detailed announcement will be sent to Zimbra account holders.

Also, I will remind you again — if you have a black “AASTRA” phone in your office, it’s going to stop working at 5PM, along with all your networking in the building.

Thanks for your understanding.

Written by Craig Stacey

November 2, 2011 at 7:30 pm

Posted in Uncategorized

2011 MCS User Feedback Survey

It’s time to conduct our User Feedback survey. (Well, past time, really, since it’s been over a year.)

You can find the survey here: http://www.surveymonkey.com/s/KVTHY6Y (also linked off our blog (systemsblog.mcs.anl.gov), and the IT Wiki (mcs.anl.gov/help)). The survey is open until 10/31, and all answers are completely anonymous.

I’ve simplified the questions somewhat and went a little more free-form with the answers. There are six questions in total.

Thanks.

Written by Craig Stacey

October 6, 2011 at 10:28 pm

Posted in Uncategorized

Service outage resolved

(earlier, blog only)

> I’ve identified and replaced the failed server, and authentication is working again. We’ve got some NFS issues lingering that I’m tracking down that are preventing people from logging into the login servers. I’ll post another update once that’s taken care of.

Update: NFS has been restored. Some machines may need a reboot. login2.mcs.anl.gov was rebooted in the process of debugging this. login1.mcs.anl.gov was done in by a combination of the service outage and a user job on the login node that ran the machine out of memory. login3 and login4 remained up.
Zimbra issues seem to have cleared up as soon as the authentication service was restored. This outage affected:
CELS Zimbra users
MCS LDAP/Kerberos authentications (including MCS Unix workstations)
NFS
MCS License servers.

We will investigate why backup authentication methods did not help, as well as why CI Zimbra users were affected. Thanks for your patience.

Written by Craig Stacey

September 11, 2011 at 10:32 pm

Posted in Uncategorized

Authentication fixed

I’ve identified and replaced the failed server, and authentication is working again. We’ve got some NFS issues lingering that I’m tracking down that are preventing people from logging into the login servers. I’ll post another update once that’s taken care of.

Written by Craig Stacey

September 11, 2011 at 9:02 pm

Posted in Uncategorized

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